ANSWER:

The sin is so major and heinous, there is no kaffarah that can accommodate it! A person who does this is cursed by Allah.

https://islamqa.info/en/answers/52803/is-there-any-expiation-for-having-intercourse-with-a-woman-in-her-back-passage

QUESTION: What is the expiation for anal sex??

Fiqh of Marriage, Sins | December 29, 2022 4:07 am
Previous

QUESTION: If a father liked a guy for her daughter and her daughter too willing to marry him without having any problem and her father gave green light,then is it mandatory for her to obey her mother as she did not like the groom for her daughter….?
Next

QUESTION: My husband says I am obligated to serve his parents if he says so, because it’s my obligation to obey him. Is it true? Do I have to serve his parents and his other relatives? Please let me know in detail.